TM_fdtd

视频监控，如果有东西经过监控区域就语音报警（有贼闯入）利用帧之间做差的方法(Video surveillance, if there are things after monitoring the regional voice alarm (the thief broke into) the use of the frame do the difference between method)

采用最小二乘法进行参数辨识，模型为三阶模型。(Using the least squares method to identify the parameters, the model for the third-order model.)

matlab中的一个snake算法程序，适合初学者学习使用。(a snake algorithm matlab program, suitable for beginners to learn to use.)

pca做特征降维，然后进行特征空间随机分割构造多个svm分类器，并行处理，对样本进行分类，基于特征空间的svm多分类器(using pca reduce feature dimension,split feature space and then randomly divided over svm classifier construction, parallel processing, the samples were classified, based on multi-feature space classification svm )

采用修改的Yule－Walker方程来计算ARMA模型的参数，注意，是针对随机信号； (calculat parameters for ARMA model)

输入信号为方波信号+高斯白噪声，方波信号基 频为1kHz，幅值为1，高斯白噪声方差为0.2， 均值为0，采样频率为20kHz。试用最大熵估计 法估计此信号的AR模型及其功率谱，并分析结 果(The input signal is a square wave signal+ Gaussian white noise, square wave signal fundamental frequency 1kHz, amplitude is a Gaussian white noise variance is 0.2, the mean is 0, the sampling frequency is 20kHz. Try maximum entropy estimation method to estimate the AR model of this signal and its power spectrum, and analyze the results)

Refprop library. This library calculates thermodynamics properties for several refrigerants

optimal quantizer for several common used distribution, and very fast running speed(optimal quantizer for several common used distribution,and very fast running speed)

A dos attack demo on network layers BGP protocol

说明：  非常好的参考资料，帮助学习时频域分析——s变换(Very good reference material, help to learn time-frequency analysis - S transform)